Game theory emerged in the 1940’s as a math-driven, esoteric science of how people alternately cooperate and compete to get what they want. It’s been used in business, diplomacy and military strategies and won famed Princeton economist John Nash the Nobel Prize in 1994. Now, far from the halls of academia and the corridors of power, it’s also being used to conserve nature.

Proyecto Tití is a Colombian non-profit that integrates wildlife and forest preservation with education and community development. Proyecto Tití’s work centers around the cotton-top tamarin monkey, Colombia’s cutest, but most threatened, primate.